@article{1183499106, author = {Bell, E. T.}, title = {Arithmetical consequences of a trigonometric identity}, journal = {Bull. Amer. Math. Soc.}, volume = {42}, number = {12}, year = {1936}, pages = { 557-560}, language = {en}, url = {http://dml.mathdoc.fr/item/1183499106} }
Bell, E. T. Arithmetical consequences of a trigonometric identity. Bull. Amer. Math. Soc., Tome 42 (1936) no. 12, pp. 557-560. http://gdmltest.u-ga.fr/item/1183499106/